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研究了可用于磁场传感器的磁电复合材料,对传统的磁电复合材料进行了结构创新,采用条状PZT和Terfenol-D的材料体系,用热固树脂进行粘合,Terfenol-D沿长度方向磁化且PZT条沿厚度方向极化。与传统的1-3型复合不同的是:每根PZT的输出极被串联起来。在同样的磁场激励下,新型复合材料的输出电压为相同体积的同种结构复合材料的2.2倍,增强了材料对磁场的灵敏度和抗噪声性能。
The magnetic composite materials that can be used in magnetic field sensors are studied. The traditional magnetic composite materials are structurally modified. The material system of strip-shaped PZT and Terfenol-D is used to bond with thermosetting resin. The length of Terfenol-D along the length direction Magnetized and PZT bars are polarized in the thickness direction. Unlike the traditional 1-3 type compound, the output of each PZT is connected in series. Under the same excitation of the magnetic field, the output voltage of the new composite material is 2.2 times of the same volume of the same structure composite material, which enhances the sensitivity of the material to the magnetic field and the anti-noise performance.